bb3909bc17699f82c7f420fe947bba8b693e1f2266c764a11a59e4181245c36e

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 02:36

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General

Target

2024-02-22_82e0f06662af8bd173588934a7d0b0aa_cryptolocker.exe
Size

52KB
MD5

82e0f06662af8bd173588934a7d0b0aa
SHA1

d7a0d1f27fed9535625324f0866a709ba7bd3eee
SHA256

bb3909bc17699f82c7f420fe947bba8b693e1f2266c764a11a59e4181245c36e
SHA512

0ddf94704d1918d498e4334976e5ebc97f09832ef8c3308537a6397e30276e7407b2a2c3b7b6fd8f800039253eae7447f6eea997dd98ecb7c8fd093707beee94
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakl+:V6a+pOtEvwDpjF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012243-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012243-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1608	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2864	2024-02-22_82e0f06662af8bd173588934a7d0b0aa_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 1608	2864	2024-02-22_82e0f06662af8bd173588934a7d0b0aa_cryptolocker.exe	28
PID 2864 wrote to memory of 1608	2864	2024-02-22_82e0f06662af8bd173588934a7d0b0aa_cryptolocker.exe	28
PID 2864 wrote to memory of 1608	2864	2024-02-22_82e0f06662af8bd173588934a7d0b0aa_cryptolocker.exe	28
PID 2864 wrote to memory of 1608	2864	2024-02-22_82e0f06662af8bd173588934a7d0b0aa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_82e0f06662af8bd173588934a7d0b0aa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_82e0f06662af8bd173588934a7d0b0aa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
52KB

MD5
1a1fc3c354904429a855d7301bdca68a

SHA1
01e0310901f633ab0ac70772319352403de0a633

SHA256
5f0e121ffb138f00f816112cc3f8ce26edab15be11d2db8f2eb37a6eae7ff605

SHA512
12e6bf650732e7f8f018d0643bb272350a88478976a0995b245b0c0a8032e91a8bab72388b0c08924b4e63fad34418993d0503dca4dce225aa02c0e034f09388

Download Submit
memory/1608-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1608-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2864-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2864-2-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2864-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download